A commercial mixer can often be one of the most time saving machines in the professional kitchen. Sometimes simply called food mixers, these are designed to take all the stress and strain out of mixing large quantities - ideal for bakeries, restaurants, pizzerias and more. Food mixers fall into three categories. Hand mixers are the smallest type and are perfect for small batches or mobile catering. Planetary mixers are large industrial mixing machines which are designed to mix vast quantities - usually up to 40 litres in the biggest versions. Finally, spiral mixers use a unique mixing system which is just right for mixing large batches of bread or pizza dough.