This week, four packaged foods stocks are improving their overall ratings on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

Farmer Bros. (FARM) is making progress this week as its rating of C (“hold”) from last week increases to a B (“buy”) rating this week. Farmer Bros. roasts, packages, and distributes coffee and allied products to restaurants, hotels, hospitals, convenience stores, and fast food outlets. In Portfolio Grader’s specific subcategories of Earnings Revisions and Earnings Surprise, FARM also gets A’s. For more information, get Portfolio Grader’s complete analysis of FARM stock.

This week, Westway Group’s (WWAY) ratings are up from a C last week to a B. Westway Group provides bulk liquid storage and related value-added services worldwide. For more information, get Portfolio Grader’s complete analysis of WWAY stock.

TreeHouse Foods, Inc. (THS) gets a higher grade this week, advancing from a C last week to a B. TreeHouse Foods manufactures foods that mainly service the retail grocery and foodservice distribution channels. The stock price has risen 5.6% over the past month, better than the 1.7% decrease the S&P 500 has seen over the same period of time. For more information, get Portfolio Grader’s complete analysis of THS stock.

Inventure Foods, Inc. (SNAK) is progressing from last week’s rating of B (“buy”) as the company improves to an A (“strong buy”) this week. The Inventure Group manufactures and markets a variety of owned or licensed branded snack foods. For more information, get Portfolio Grader’s complete analysis of SNAK stock.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.