If I Understand well your question, IMO depending by the condition of your's canteens. If you have only mint canteen, you won't have any kind of problem. If you have used e/or abused canteen, You may have some problem.
The area where you're talking to is the most sensitive area is the area under greater stress (if we're talking about a hypothetical use on the battlefield). So be careful with them
The area where you're talking to is the most sensitive area is the area under greater stress (if we're talking about a hypothetical use on the battlefield). So be careful with them
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