Summer is often a time when food prices spike due to seasonal demand and changes in agricultural supply. You can protect your grocery budget by identifying which foods are likely to get more expensive and freezing them ahead of time. This proactive strategy allows you to lock in the lower prices you see right now. It takes a little bit of freezer space and some planning, but the savings are well worth it. Here are seven foods you should stock up on and freeze before the summer price climb hits.