
These are durable plastic bottles that are definitely very resistant to leaks. They're food safe, but I'm not sure they're the best choice for serving thicker sauces and condiments like ketchup, mustard, barbecue sauce, and the like. The first downside is the narrow neck, which makes filling a slow and potentially messy task. The second is a grommet that appears to be made of closed-cell foam. The washing machine probably makes the bottles "spill-proof," but whatever it's made of captures the colors, tastes, and smells of what's in the bottle, and is another small part that needs cleaning and may be missing space is. If you use these bottles to fill other, thinner liquids around the kitchen I would recommend another Tovla product, their A27 squeeze bottles, for thicker sauces. These bottles do not have a sealing disc, but are still very leak-proof. They also have a much wider mouth, a built-in lid, and are much easier to squeeze. In general, A27s are better for condiments and sauces, IMHO.

Cocktail Shaker, Cocktail Shaker Set, Martini Shaker, Drink Shaker, Bartender Kit 25 Oz Margarita Drink Mixer Christmas Gift, Muddler, Mixing Spoon, Jigger, Liquor Pourers Alcohol Tool Strainer Set
44 Review

TQVAI 3-Tier Spice Rack Organizer With Pull Out Drawers - 30 Jars And Labels - Perfect For Kitchen Countertops, Cabinets And Pantry - Upgraded Version In White
44 Review

Geratherm Classic Green Thermometer
44 Review

Citrus juicer Kitfort KT-1108, black/silver
126 Review

SMARTAKE Non-Stick Parchment Paper Roll, 13 In X 164 Ft (177 Sq. Ft) For Baking, Cooking, Air Fryer, Steamer, Kitchen, Cookies, Bread, And More - White Baking Pan Liner
41 Review

4 Pack 12 Inch Stainless Steel Round Pizza Baking Pan Tray Crisper Sheet Oven Cooking Healthy For Pizzas - Deedro
47 Review

GOBAM Wood Rolling Pin: The Perfect Dough Roller For Baking Cookies, Pie, Pizza & More - 13 X 1.38 Inches
35 Review

AmazonBasics силиконовый коврик для выпечки
48 Review