Dips are sweet or savory sauces designed for dunking accompaniments such as breadsticks, crisps and vegetable crudites, with many savory formulations built on sour cream, cream cheese or mayonnaise enriched with herbs, spices and vegetables. Their appeal lies in contrast: cool creaminess against crunch, or sharp acidity cutting through richness. The same word also denotes the chemical and hot-water immersion treatments used to decontaminate produce. Both senses demand careful formulation and hygienic handling, since dairy-based dips are perishable and must be kept refrigerated.