![Amazon.com: HYDRO FLASK - Water Bottle 621 ml (21 oz) with Flex Straw Cap - Vacuum Insulated Stainless Steel Reusable Water Bottle - Leakproof Lid - Hot and Cold Drinks - Standard Amazon.com: HYDRO FLASK - Water Bottle 621 ml (21 oz) with Flex Straw Cap - Vacuum Insulated Stainless Steel Reusable Water Bottle - Leakproof Lid - Hot and Cold Drinks - Standard](https://m.media-amazon.com/images/I/41QYKegmJoL.jpg)
Amazon.com: HYDRO FLASK - Water Bottle 621 ml (21 oz) with Flex Straw Cap - Vacuum Insulated Stainless Steel Reusable Water Bottle - Leakproof Lid - Hot and Cold Drinks - Standard
![High Quality Water Bottle 316 Stainless Steel Cold Hydroflask Thermos Large Capacity Thermal Mug Cup Sport Cycling Vacuum Flask - AliExpress High Quality Water Bottle 316 Stainless Steel Cold Hydroflask Thermos Large Capacity Thermal Mug Cup Sport Cycling Vacuum Flask - AliExpress](https://ae01.alicdn.com/kf/S0f57c4fd57e940a7bf063adc7469a94bb/High-Quality-Water-Bottle-316-Stainless-Steel-Cold-Hydroflask-Thermos-Large-Capacity-Thermal-Mug-Cup-Sport.jpg)
High Quality Water Bottle 316 Stainless Steel Cold Hydroflask Thermos Large Capacity Thermal Mug Cup Sport Cycling Vacuum Flask - AliExpress
![Got my very first flask today. My question is. After i cleaned it. Is it ok to put cold water in it already. My brother said i should put hot water first Got my very first flask today. My question is. After i cleaned it. Is it ok to put cold water in it already. My brother said i should put hot water first](https://i.redd.it/63th2da5knlb1.jpg)
Got my very first flask today. My question is. After i cleaned it. Is it ok to put cold water in it already. My brother said i should put hot water first
![Amazon.com: HYDRO FLASK - Water Bottle 621 ml (21 oz) with Flex Straw Cap - Vacuum Insulated Stainless Steel Reusable Water Bottle - Leakproof Lid - Hot and Cold Drinks - Standard Amazon.com: HYDRO FLASK - Water Bottle 621 ml (21 oz) with Flex Straw Cap - Vacuum Insulated Stainless Steel Reusable Water Bottle - Leakproof Lid - Hot and Cold Drinks - Standard](https://m.media-amazon.com/images/I/61rIa1gp-AL._AC_UF894,1000_QL80_.jpg)