Mixing
Why is putting hot milk in a thermos not recommended?
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A colleague of mine just got a new thermos (inox), this model, and actually read all instruction, and we were surprised to read that it is not recommended to pour hot milk in the thermos.
My opinion was that:
- Unlike tea of coffee, a lot of micro-organisms live in milk, will end up being a favorable place for those micro-organisms to generate a culture (which will be more and more difficult to get rid off, and will contaminate any other fluid poured in the thermos)
- If you don't wash it straight away, it will really stink.
- The milk being full of water-insoluble proteins/fat, it will "coat" the internal thermos walls (gross!) - I've already seeing that "coat" forming in plastic containers, and I guess it won't be any different in inox containers.
I've actually not found an answer online, so I thought that here I could find some experts. I realize this could be a cross-question for Biology SE, but I felt it more food-related.
storage-method milk
edited yesterday
Peter Mortensen
1354
asked yesterday
aechchiki
22116
New contributor
aechchiki is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
up vote
24
down vote
favorite
A colleague of mine just got a new thermos (inox), this model, and actually read all instruction, and we were surprised to read that it is not recommended to pour hot milk in the thermos.
My opinion was that:
- Unlike tea of coffee, a lot of micro-organisms live in milk, will end up being a favorable place for those micro-organisms to generate a culture (which will be more and more difficult to get rid off, and will contaminate any other fluid poured in the thermos)
- If you don't wash it straight away, it will really stink.
- The milk being full of water-insoluble proteins/fat, it will "coat" the internal thermos walls (gross!) - I've already seeing that "coat" forming in plastic containers, and I guess it won't be any different in inox containers.
I've actually not found an answer online, so I thought that here I could find some experts. I realize this could be a cross-question for Biology SE, but I felt it more food-related.
storage-method milk
edited yesterday
Peter Mortensen
1354
asked yesterday
aechchiki
22116
New contributor
aechchiki is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
thermos.co.uk/UK_careuse_stainless_steel_vacuum_flask.aspx here are the instructions for a similar model flask for reference. Note that they recommend its because of the possibility of bacterial growth.
– J.Doe
8 hours ago
add a comment |
up vote
24
down vote
favorite
up vote
24
down vote
favorite
A colleague of mine just got a new thermos (inox), this model, and actually read all instruction, and we were surprised to read that it is not recommended to pour hot milk in the thermos.
My opinion was that:
- Unlike tea of coffee, a lot of micro-organisms live in milk, will end up being a favorable place for those micro-organisms to generate a culture (which will be more and more difficult to get rid off, and will contaminate any other fluid poured in the thermos)
- If you don't wash it straight away, it will really stink.
- The milk being full of water-insoluble proteins/fat, it will "coat" the internal thermos walls (gross!) - I've already seeing that "coat" forming in plastic containers, and I guess it won't be any different in inox containers.
I've actually not found an answer online, so I thought that here I could find some experts. I realize this could be a cross-question for Biology SE, but I felt it more food-related.
storage-method milk
edited yesterday
Peter Mortensen
1354
asked yesterday
aechchiki
22116
New contributor
aechchiki is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
A colleague of mine just got a new thermos (inox), this model, and actually read all instruction, and we were surprised to read that it is not recommended to pour hot milk in the thermos.
My opinion was that:
- Unlike tea of coffee, a lot of micro-organisms live in milk, will end up being a favorable place for those micro-organisms to generate a culture (which will be more and more difficult to get rid off, and will contaminate any other fluid poured in the thermos)
- If you don't wash it straight away, it will really stink.
- The milk being full of water-insoluble proteins/fat, it will "coat" the internal thermos walls (gross!) - I've already seeing that "coat" forming in plastic containers, and I guess it won't be any different in inox containers.
I've actually not found an answer online, so I thought that here I could find some experts. I realize this could be a cross-question for Biology SE, but I felt it more food-related.
storage-method milk
storage-method milk
edited yesterday
Peter Mortensen
1354
asked yesterday
aechchiki
22116
New contributor
aechchiki is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited yesterday
Peter Mortensen
1354
asked yesterday
aechchiki
22116
New contributor
aechchiki is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited yesterday
Peter Mortensen
1354
edited yesterday
Peter Mortensen
1354
edited yesterday
Peter Mortensen
1354
1354
asked yesterday
aechchiki
22116
New contributor
aechchiki is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked yesterday
aechchiki
22116
asked yesterday
aechchiki
22116
22116
New contributor
aechchiki is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
aechchiki is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
aechchiki is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
thermos.co.uk/UK_careuse_stainless_steel_vacuum_flask.aspx here are the instructions for a similar model flask for reference. Note that they recommend its because of the possibility of bacterial growth.
– J.Doe
8 hours ago
add a comment |
1
thermos.co.uk/UK_careuse_stainless_steel_vacuum_flask.aspx here are the instructions for a similar model flask for reference. Note that they recommend its because of the possibility of bacterial growth.
– J.Doe
8 hours ago
1
1
thermos.co.uk/UK_careuse_stainless_steel_vacuum_flask.aspx here are the instructions for a similar model flask for reference. Note that they recommend its because of the possibility of bacterial growth.
– J.Doe
8 hours ago
thermos.co.uk/UK_careuse_stainless_steel_vacuum_flask.aspx here are the instructions for a similar model flask for reference. Note that they recommend its because of the possibility of bacterial growth.
– J.Doe
8 hours ago
add a comment |
3 Answers
3
active
oldest
votes
up vote
54
down vote
The cleaning is one thing (there are flasks without hidden crevices that can be easily cleaned), but there’s also another point to consider:
A thermos flask that is doing its job will keep food warm, or rather, slow down the cooling process. Even if you fill it with fairly hot liquid, it will slowly cool. If you do that with a perishable food like milk, you will easily create an environment in the upper range of the danger zone, where food will become unsafe after as little as two hours.
Yes, you can argue that you are filling hot milk in a clean container, but in the end, it’ll be not safe by food safety standards. (What you make of that is obviously your choice.) The manufacturer’s warning will protect the end users from food poisoning.
answered yesterday
Stephie♦
35.8k497132
Comments are not for extended discussion; this conversation has been moved to chat.
– rumtscho♦
9 hours ago
1
"...will keep food warm" - or cold.
– MrWhite
23 mins ago
add a comment |
up vote
16
down vote
It depends on the design. Some can't be washed properly, and milky liquids are much harder to clean off by rinsing than water or most water-based drinks
My genuine Thermos brand flask wouldn't be a problem because all the surfaces that come into contact with the food are accessible.
My previous small cheap flask had a pouring system in the lid that meant the contents passed through a non-washable chamber (clipped together in a way that wasn't designed to be opened). I eventually forced it open to find it full of hot chocolate residue. My flask is mainly used for kayaking, it has to be made up beforehand as fiddling about with powders when on a riverbank in the pouring rain doesn't tend to get you a hot drink when you need it. At that point it would have gone in the bin even if I hadn't just broken it.
answered yesterday
Chris H
16.2k13048
3
makes sense! I added a link to the model of the thermos I am talking about. true that in out case the chamber seems to be fairly accessible, but the top is very hard to disassemble and clean, thus milk can be stuck in there if you pour it through that top (what usually people do)
– aechchiki
yesterday
5
Yes, inside the inner lid is a hard-to-get-at incubator for all sorts of unpleasant life forms.
– Chris H
yesterday
FWIW, "my genuine Thermos brand flask" would be a problem since it has one of those "pouring systems" in the lid that is not entirely washable.
– MrWhite
28 mins ago
add a comment |
up vote
0
down vote
Another aspect might be the engineering behind thermoses.
A thermos has a layer of vacuum between two layers of glass(At least back in the day it used to be like this),
This meant that the glass will break in case of rapid expansion due to hot liquids poured immediately. Milk has a higher heat capacity compared to diluted beverages, so that means it can hurt the flask even more.
Maybe they have engineered this problem away, but might be one of the reasons!
-BD.
answered 2 hours ago
BikerDude
1
New contributor
BikerDude is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
This is the reason why my grandma used to put a metal spoon in any glass she would pour any hot liquid into (tea, coffee...), to avoid it to be broke by the hot liquid. However i see here that milk has lower specific heat than water ( engineeringtoolbox.com/specific-heat-fluids-d_151.html) - is this what you are referring to?
– aechchiki
2 hours ago
Plus, nowadays the thermos (at least the model that I linked to in the question) are not made of glass anymore (safety issues I guess)
– aechchiki
2 hours ago
add a comment |
3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
54
down vote
The cleaning is one thing (there are flasks without hidden crevices that can be easily cleaned), but there’s also another point to consider:
A thermos flask that is doing its job will keep food warm, or rather, slow down the cooling process. Even if you fill it with fairly hot liquid, it will slowly cool. If you do that with a perishable food like milk, you will easily create an environment in the upper range of the danger zone, where food will become unsafe after as little as two hours.
Yes, you can argue that you are filling hot milk in a clean container, but in the end, it’ll be not safe by food safety standards. (What you make of that is obviously your choice.) The manufacturer’s warning will protect the end users from food poisoning.
answered yesterday
Stephie♦
35.8k497132
Comments are not for extended discussion; this conversation has been moved to chat.
– rumtscho♦
9 hours ago
1
"...will keep food warm" - or cold.
– MrWhite
23 mins ago
add a comment |
up vote
54
down vote
The cleaning is one thing (there are flasks without hidden crevices that can be easily cleaned), but there’s also another point to consider:
A thermos flask that is doing its job will keep food warm, or rather, slow down the cooling process. Even if you fill it with fairly hot liquid, it will slowly cool. If you do that with a perishable food like milk, you will easily create an environment in the upper range of the danger zone, where food will become unsafe after as little as two hours.
Yes, you can argue that you are filling hot milk in a clean container, but in the end, it’ll be not safe by food safety standards. (What you make of that is obviously your choice.) The manufacturer’s warning will protect the end users from food poisoning.
answered yesterday
Stephie♦
35.8k497132
Comments are not for extended discussion; this conversation has been moved to chat.
– rumtscho♦
9 hours ago
1
"...will keep food warm" - or cold.
– MrWhite
23 mins ago
add a comment |
up vote
54
down vote
up vote
54
down vote
The cleaning is one thing (there are flasks without hidden crevices that can be easily cleaned), but there’s also another point to consider:
A thermos flask that is doing its job will keep food warm, or rather, slow down the cooling process. Even if you fill it with fairly hot liquid, it will slowly cool. If you do that with a perishable food like milk, you will easily create an environment in the upper range of the danger zone, where food will become unsafe after as little as two hours.
Yes, you can argue that you are filling hot milk in a clean container, but in the end, it’ll be not safe by food safety standards. (What you make of that is obviously your choice.) The manufacturer’s warning will protect the end users from food poisoning.
answered yesterday
Stephie♦
35.8k497132
The cleaning is one thing (there are flasks without hidden crevices that can be easily cleaned), but there’s also another point to consider:
A thermos flask that is doing its job will keep food warm, or rather, slow down the cooling process. Even if you fill it with fairly hot liquid, it will slowly cool. If you do that with a perishable food like milk, you will easily create an environment in the upper range of the danger zone, where food will become unsafe after as little as two hours.
Yes, you can argue that you are filling hot milk in a clean container, but in the end, it’ll be not safe by food safety standards. (What you make of that is obviously your choice.) The manufacturer’s warning will protect the end users from food poisoning.
answered yesterday
Stephie♦
35.8k497132
answered yesterday
Stephie♦
35.8k497132
answered yesterday
Stephie♦
35.8k497132
answered yesterday
Stephie♦
35.8k497132
35.8k497132
Comments are not for extended discussion; this conversation has been moved to chat.
– rumtscho♦
9 hours ago
1
"...will keep food warm" - or cold.
– MrWhite
23 mins ago
add a comment |
Comments are not for extended discussion; this conversation has been moved to chat.
– rumtscho♦
9 hours ago
1
"...will keep food warm" - or cold.
– MrWhite
23 mins ago
Comments are not for extended discussion; this conversation has been moved to chat.
– rumtscho♦
9 hours ago
Comments are not for extended discussion; this conversation has been moved to chat.
– rumtscho♦
9 hours ago
1
1
"...will keep food warm" - or cold.
– MrWhite
23 mins ago
"...will keep food warm" - or cold.
– MrWhite
23 mins ago
add a comment |
up vote
16
down vote
It depends on the design. Some can't be washed properly, and milky liquids are much harder to clean off by rinsing than water or most water-based drinks
My genuine Thermos brand flask wouldn't be a problem because all the surfaces that come into contact with the food are accessible.
My previous small cheap flask had a pouring system in the lid that meant the contents passed through a non-washable chamber (clipped together in a way that wasn't designed to be opened). I eventually forced it open to find it full of hot chocolate residue. My flask is mainly used for kayaking, it has to be made up beforehand as fiddling about with powders when on a riverbank in the pouring rain doesn't tend to get you a hot drink when you need it. At that point it would have gone in the bin even if I hadn't just broken it.
answered yesterday
Chris H
16.2k13048
3
makes sense! I added a link to the model of the thermos I am talking about. true that in out case the chamber seems to be fairly accessible, but the top is very hard to disassemble and clean, thus milk can be stuck in there if you pour it through that top (what usually people do)
– aechchiki
yesterday
5
Yes, inside the inner lid is a hard-to-get-at incubator for all sorts of unpleasant life forms.
– Chris H
yesterday
FWIW, "my genuine Thermos brand flask" would be a problem since it has one of those "pouring systems" in the lid that is not entirely washable.
– MrWhite
28 mins ago
add a comment |
up vote
16
down vote
It depends on the design. Some can't be washed properly, and milky liquids are much harder to clean off by rinsing than water or most water-based drinks
My genuine Thermos brand flask wouldn't be a problem because all the surfaces that come into contact with the food are accessible.
My previous small cheap flask had a pouring system in the lid that meant the contents passed through a non-washable chamber (clipped together in a way that wasn't designed to be opened). I eventually forced it open to find it full of hot chocolate residue. My flask is mainly used for kayaking, it has to be made up beforehand as fiddling about with powders when on a riverbank in the pouring rain doesn't tend to get you a hot drink when you need it. At that point it would have gone in the bin even if I hadn't just broken it.
answered yesterday
Chris H
16.2k13048
3
makes sense! I added a link to the model of the thermos I am talking about. true that in out case the chamber seems to be fairly accessible, but the top is very hard to disassemble and clean, thus milk can be stuck in there if you pour it through that top (what usually people do)
– aechchiki
yesterday
5
Yes, inside the inner lid is a hard-to-get-at incubator for all sorts of unpleasant life forms.
– Chris H
yesterday
FWIW, "my genuine Thermos brand flask" would be a problem since it has one of those "pouring systems" in the lid that is not entirely washable.
– MrWhite
28 mins ago
add a comment |
up vote
16
down vote
up vote
16
down vote
It depends on the design. Some can't be washed properly, and milky liquids are much harder to clean off by rinsing than water or most water-based drinks
My genuine Thermos brand flask wouldn't be a problem because all the surfaces that come into contact with the food are accessible.
My previous small cheap flask had a pouring system in the lid that meant the contents passed through a non-washable chamber (clipped together in a way that wasn't designed to be opened). I eventually forced it open to find it full of hot chocolate residue. My flask is mainly used for kayaking, it has to be made up beforehand as fiddling about with powders when on a riverbank in the pouring rain doesn't tend to get you a hot drink when you need it. At that point it would have gone in the bin even if I hadn't just broken it.
answered yesterday
Chris H
16.2k13048
It depends on the design. Some can't be washed properly, and milky liquids are much harder to clean off by rinsing than water or most water-based drinks
My genuine Thermos brand flask wouldn't be a problem because all the surfaces that come into contact with the food are accessible.
My previous small cheap flask had a pouring system in the lid that meant the contents passed through a non-washable chamber (clipped together in a way that wasn't designed to be opened). I eventually forced it open to find it full of hot chocolate residue. My flask is mainly used for kayaking, it has to be made up beforehand as fiddling about with powders when on a riverbank in the pouring rain doesn't tend to get you a hot drink when you need it. At that point it would have gone in the bin even if I hadn't just broken it.
answered yesterday
Chris H
16.2k13048
answered yesterday
Chris H
16.2k13048
answered yesterday
Chris H
16.2k13048
answered yesterday
Chris H
16.2k13048
16.2k13048
3
makes sense! I added a link to the model of the thermos I am talking about. true that in out case the chamber seems to be fairly accessible, but the top is very hard to disassemble and clean, thus milk can be stuck in there if you pour it through that top (what usually people do)
– aechchiki
yesterday
5
Yes, inside the inner lid is a hard-to-get-at incubator for all sorts of unpleasant life forms.
– Chris H
yesterday
FWIW, "my genuine Thermos brand flask" would be a problem since it has one of those "pouring systems" in the lid that is not entirely washable.
– MrWhite
28 mins ago
add a comment |
3
makes sense! I added a link to the model of the thermos I am talking about. true that in out case the chamber seems to be fairly accessible, but the top is very hard to disassemble and clean, thus milk can be stuck in there if you pour it through that top (what usually people do)
– aechchiki
yesterday
5
Yes, inside the inner lid is a hard-to-get-at incubator for all sorts of unpleasant life forms.
– Chris H
yesterday
FWIW, "my genuine Thermos brand flask" would be a problem since it has one of those "pouring systems" in the lid that is not entirely washable.
– MrWhite
28 mins ago
3
3
makes sense! I added a link to the model of the thermos I am talking about. true that in out case the chamber seems to be fairly accessible, but the top is very hard to disassemble and clean, thus milk can be stuck in there if you pour it through that top (what usually people do)
– aechchiki
yesterday
makes sense! I added a link to the model of the thermos I am talking about. true that in out case the chamber seems to be fairly accessible, but the top is very hard to disassemble and clean, thus milk can be stuck in there if you pour it through that top (what usually people do)
– aechchiki
yesterday
5
5
Yes, inside the inner lid is a hard-to-get-at incubator for all sorts of unpleasant life forms.
– Chris H
yesterday
Yes, inside the inner lid is a hard-to-get-at incubator for all sorts of unpleasant life forms.
– Chris H
yesterday
FWIW, "my genuine Thermos brand flask" would be a problem since it has one of those "pouring systems" in the lid that is not entirely washable.
– MrWhite
28 mins ago
FWIW, "my genuine Thermos brand flask" would be a problem since it has one of those "pouring systems" in the lid that is not entirely washable.
– MrWhite
28 mins ago
add a comment |
up vote
0
down vote
Another aspect might be the engineering behind thermoses.
A thermos has a layer of vacuum between two layers of glass(At least back in the day it used to be like this),
This meant that the glass will break in case of rapid expansion due to hot liquids poured immediately. Milk has a higher heat capacity compared to diluted beverages, so that means it can hurt the flask even more.
Maybe they have engineered this problem away, but might be one of the reasons!
-BD.
answered 2 hours ago
BikerDude
1
New contributor
BikerDude is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
This is the reason why my grandma used to put a metal spoon in any glass she would pour any hot liquid into (tea, coffee...), to avoid it to be broke by the hot liquid. However i see here that milk has lower specific heat than water ( engineeringtoolbox.com/specific-heat-fluids-d_151.html) - is this what you are referring to?
– aechchiki
2 hours ago
Plus, nowadays the thermos (at least the model that I linked to in the question) are not made of glass anymore (safety issues I guess)
– aechchiki
2 hours ago
add a comment |
up vote
0
down vote
Another aspect might be the engineering behind thermoses.
A thermos has a layer of vacuum between two layers of glass(At least back in the day it used to be like this),
This meant that the glass will break in case of rapid expansion due to hot liquids poured immediately. Milk has a higher heat capacity compared to diluted beverages, so that means it can hurt the flask even more.
Maybe they have engineered this problem away, but might be one of the reasons!
-BD.
answered 2 hours ago
BikerDude
1
New contributor
BikerDude is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
This is the reason why my grandma used to put a metal spoon in any glass she would pour any hot liquid into (tea, coffee...), to avoid it to be broke by the hot liquid. However i see here that milk has lower specific heat than water ( engineeringtoolbox.com/specific-heat-fluids-d_151.html) - is this what you are referring to?
– aechchiki
2 hours ago
Plus, nowadays the thermos (at least the model that I linked to in the question) are not made of glass anymore (safety issues I guess)
– aechchiki
2 hours ago
add a comment |
up vote
0
down vote
up vote
0
down vote
Another aspect might be the engineering behind thermoses.
A thermos has a layer of vacuum between two layers of glass(At least back in the day it used to be like this),
This meant that the glass will break in case of rapid expansion due to hot liquids poured immediately. Milk has a higher heat capacity compared to diluted beverages, so that means it can hurt the flask even more.
Maybe they have engineered this problem away, but might be one of the reasons!
-BD.
answered 2 hours ago
BikerDude
1
New contributor
BikerDude is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Another aspect might be the engineering behind thermoses.
A thermos has a layer of vacuum between two layers of glass(At least back in the day it used to be like this),
This meant that the glass will break in case of rapid expansion due to hot liquids poured immediately. Milk has a higher heat capacity compared to diluted beverages, so that means it can hurt the flask even more.
Maybe they have engineered this problem away, but might be one of the reasons!
-BD.
answered 2 hours ago
BikerDude
1
New contributor
BikerDude is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 2 hours ago
BikerDude
1
New contributor
BikerDude is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 2 hours ago
BikerDude
1
answered 2 hours ago
BikerDude
1
1
New contributor
BikerDude is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
BikerDude is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
BikerDude is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
This is the reason why my grandma used to put a metal spoon in any glass she would pour any hot liquid into (tea, coffee...), to avoid it to be broke by the hot liquid. However i see here that milk has lower specific heat than water ( engineeringtoolbox.com/specific-heat-fluids-d_151.html) - is this what you are referring to?
– aechchiki
2 hours ago
Plus, nowadays the thermos (at least the model that I linked to in the question) are not made of glass anymore (safety issues I guess)
– aechchiki
2 hours ago
add a comment |
This is the reason why my grandma used to put a metal spoon in any glass she would pour any hot liquid into (tea, coffee...), to avoid it to be broke by the hot liquid. However i see here that milk has lower specific heat than water ( engineeringtoolbox.com/specific-heat-fluids-d_151.html) - is this what you are referring to?
– aechchiki
2 hours ago
Plus, nowadays the thermos (at least the model that I linked to in the question) are not made of glass anymore (safety issues I guess)
– aechchiki
2 hours ago
This is the reason why my grandma used to put a metal spoon in any glass she would pour any hot liquid into (tea, coffee...), to avoid it to be broke by the hot liquid. However i see here that milk has lower specific heat than water ( engineeringtoolbox.com/specific-heat-fluids-d_151.html) - is this what you are referring to?
– aechchiki
2 hours ago
This is the reason why my grandma used to put a metal spoon in any glass she would pour any hot liquid into (tea, coffee...), to avoid it to be broke by the hot liquid. However i see here that milk has lower specific heat than water ( engineeringtoolbox.com/specific-heat-fluids-d_151.html) - is this what you are referring to?
– aechchiki
2 hours ago
Plus, nowadays the thermos (at least the model that I linked to in the question) are not made of glass anymore (safety issues I guess)
– aechchiki
2 hours ago
Plus, nowadays the thermos (at least the model that I linked to in the question) are not made of glass anymore (safety issues I guess)
– aechchiki
2 hours ago
add a comment |
aechchiki is a new contributor. Be nice, and check out our Code of Conduct.
aechchiki is a new contributor. Be nice, and check out our Code of Conduct.
aechchiki is a new contributor. Be nice, and check out our Code of Conduct.
aechchiki is a new contributor. Be nice, and check out our Code of Conduct.
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1
thermos.co.uk/UK_careuse_stainless_steel_vacuum_flask.aspx here are the instructions for a similar model flask for reference. Note that they recommend its because of the possibility of bacterial growth.
– J.Doe
8 hours ago