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Produce 101: Tomatoes

Tomatoes are an ancient crop, thought to have originated in Central America centuries ago.  While the tomato has become associated with Mediterranean cuisine, they were are relatively late arrive to the European pantry, not arriving until the 16th century.

 

Tomato--fruit or vegetable

Are they a fruit or are they a vegetable?

Botanically, they are a fruit, but the Supreme Court said they’re a vegetable since they are used as such. There’s a great Miles Kington quote that comes to mind: “Knowledge is knowing that a tomato is a fruit. Wisdom is not putting it in a fruit salad.”

Produce 101: Tomatoes

Tomatoes are amazingly diverse and come in a multitude of sizes, shapes, colors and flavors–and they will add constant variety to your menus. Today, we are going to cover the basics and save the specialty varieties, like Heirloom tomatoes, for another time.

Typically, yellow tomatoes are sweeter and less acidic, where red tomatoes have that traditional rich robust flavor we commonly know.

 

freshpoint produce 101 tomatoe red and yellow
Yellow tomatoes tend to be less acidic. Red tomatoes have that rich robust tomato flavor.

 

Let start with the USDA grade standards

Field Grown USDA Standards

  • US #1
  • US Combination
  • US #2
  • US #3

Hothouse Grown USDA Standards

  • US #1
  • US #2

The grade standards are based on physical appearance as well as maturity indices.  Look for tomatoes that are well-formed for the variety, a uniform color throughout the case, a smooth skin, and are firm and not overripe.

Produce 101: Tomatoes — Field-grown vs. Hothouse Grown

What’s the difference? Well, field grown tomatoes are grown outdoors in a traditional agricultural setting. Farmers, harvesters, and maintenance crews are walking up and down the rows maintaining the vines; whereas, hothouse tomatoes are grown in a structure such as a greenhouse or hoop house.

It’s a controlled environment with more consistent harvest cycles. They grow a little quicker, and the costs can be a little more.

Hothouse tomatoes often come on the vine, and while it certainly looks great, it actually has a practical function. The caylix keeps the tomatoes from drying out as fast. So, it extends the shelf life.

 

freshpoint-produce-101-tomatoes-greenhouse
Red ripe tomatoes growing in a greenhouse.

 

How do you know which one to use?

Well, you need to decide how you’re going to use the tomato. If you are looking for a uniform slice to go on top of a sandwich or as a featured part of your dish, you probably want to go with a #1. It’s a more consistent size and color. If you are processing it down into something like salsa…exterior appearance doesn’t really matter as long as the quality of the fruit is good. So, save some food cost and look at a #2 or #3 pack. Typically, they are called field run tomatoes, or even culls, some people call them salsa tomatoes. You’ll save a little money and you’ll get the same quality.

What is the best for cooking?

Roma tomatoes are graded the same as round tomatoes. But they are used a little different. It’s a better cooking tomato. While you can certainly use them raw, sliced, or diced, they really shine in a cooking application. The walls of the Roma tomato are thicker and hold up better in the cooking process.

Green tomatoes are also great to cook with. You can use them raw, they are a little more acidic and have some tartness to them. Typically, they are fried, especially in the South, but you can also pickle them.

 

freshpoint produce 101 tomatoes
Roma tomatoes are the best for cooking. They have thick walls and a rich flavor.

 

freshpoint-produce
Green tomatoes are best for frying or pickling.

Produce 101: Tomato Color Chart

Much like bananas, tomatoes have a color-based ripeness designation.

 

freshpoint produce 101 tomatoes color chart

 

Produce 101: Tomatoes — Storage and Handling

Tomatoes will continue to ripen when exposed to warm temperatures, so you do have the ability to ripen tomatoes.  As tomatoes ripen, they produce ethylene, so care needs to be taken to avoid storing them near ethylene sensitive products.  Tomatoes are also sensitive to ethylene exposure, and green tomatoes will begin to ripen when exposed to ethylene.

 

FreshPoint produce 101 tomatoes
Who are the ethylene releasing items to watch out for? These guys.

 

Tomatoes loathe cold temperatures, as it affects not only the texture, but the flavor.  A mealy texture with a bland flavor are sure signs that your tomato has gotten a bit too cold along its way.  The proper storage of tomatoes is out of refrigeration in the cooler part of your dry storage area. Keep them away from hot areas–don’t keep them by the stove.

The ideal storage temperature is 55 degrees F.

Once they are ripe, they can be stored in refrigeration for a *short* period of time.

*Note: green tomatoes should be stored in refrigeration to slow the ripening process.

 

freshpoint-produce-101-tomatoes-green
Green tomatoes need to be kept in the refrigerator to slow the ripening process.

 

So, when you get your tomatoes, what are you looking for? Well, you want uniform size and shape in the case, and more importantly, you want uniform color. You want to make sure there are no growth cracks on the surface, that would indicate heavy rains or it was a little too hot and the tomatoes grew too fast. And you want them free from decay. Tomatoes are very susceptible to bruising so let’s keep handling to a minimum. Don’t stack boxes on top if at all possible, and by all means, don’t drop the box of tomatoes.

Sizing of Round Tomatoes

Sizing of round tomatoes is based on the diameter of the fruit, with the USDA size grades being Small, Medium, Large, and Extra-large.  You may see a different nomenclature on your tomato boxes, 4×5, 5×6, etc.

This harkens back to when all tomatoes were hand-packed and this was a way of easily notating the size, as it indicates the number of rows by the number of columns each box of tomatoes would hold.  The smaller the numbers indicates a larger tomato.

Here is a handy chart:

 

freshpoint produce 101 tomatoes size chart

 

Dan talks about Produce 101: Tomatoes

 


Content provided by Chef Daniel Snowden, the Director of Culinary Development for FreshPoint Central Florida. He has been in the produce industry years almost 20 years, and loves getting geeky about food. Follow FreshPoint Central Florida on FacebookTwitter, and Instagram. Additional contributions by Lisa Pettineo.

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