Oros Blancos are the smaller grapefruit. They are a very light yellow and their fruit is a golden color. They are much sweeter and not as tart nor as sour as Ruby Red or Pink Grapefruit. They are a lovely mild grapefruit that is sweet at the front on your tongue but mildly tart once it hits the back. These would be a great grapefruit for those of you that do not enjoy the brash tartness of the Ruby Reds.
I wanted to can enough to last me a year or more, so I ended up canning all ten pounds of Oros Blancos in heavy mint syrup.
First you want to fill your canning pot with water and add the specific number of 1/2 pint jars to the pot (I needed 8). You will need to sterilize the jars first because these segments will only be in the BWB for 5 minutes.
While your canning pot is coming to a boil, you will want to wash and scrub your grapefruit. Remember the post I did about segmenting citrus? Well, we are going to do that. To all 10 pounds (yes, you can start cursing at me now. Ok, ok, I won’t make you do 10 pounds, I’ll just make you do 5).
Once you segment all the fruit, you’ll have a bowl full of lovely grapefruit segments!
Next you are going to make your heavy minty syrup (the syrup you make for this doesn’t have to be heavy. That’s the beauty of canning yourself, you can make the syrup however you want). The original recipe called for fresh mint but since it’s winter, I used dried mint; 2 tablespoons in a cheesecloth spice bag. Holding the fruit back, tip the bowl over into a 4 cup measuring cup to pour out all the grapefruit juice. Fill the water until you have 4 cups of liquid. Pour this grapefruit juice/water mixture into a medium saucepan and add 2 cups of sugar to your mint. Bring the syrup to a boil, cover, and simmer until you get the minty taste you want; I simmered it for about 20-25 minutes. If your jars have not sterilized by this time, take the mint spice bag out of the syrup and toss it, then keep the syrup simmering until you are ready to can.
Now that your jars are sterilized, place your 1/2 pint jars on a placemat or towel. Working quickly fill the hot jars with your grapefruit segments leaving about a 1/2 inch head space. Then ladle your simmering syrup into the jars up to about 1/4 inch head space.
Run a chopstick around the fruit to release air bubbles, wipe the rims with a damp paper towel, top with lid and ring, and place in your BWB. Once the pot starts to boil, start your time for 5 minutes. After the 5 minutes are up, turn off the heat, and let the jars sit in the pot for 5 minutes. Place on a place mat or towel on your counter. After an hour check the seals, if they have not sealed, place in the fridge and eat within the next two weeks. If they have successfully sealed, let them sit undisturbed overnight. Take off ring, wipe down with a damp towl, label, and place in a dark cabinet until ready to eat.
DO NOT THROW OUT THE EXTRA MINT SYRUP THAT WASN’T CANNED!!! Bottle it and put it in the fridge! We will revisit the mint syrup later!
Grapefruit in Minty Syrup
Adapted from Canning for a New Generation by Liana Krissoff
Yield: 4 half pints
5 Pounds grapefruit
1 Cup sugar
2 Tablespoons dried mint placed in cheesecloth spice bag
- Sterilize your jars and keep them hot in the canning pot. Follow BWB canning procedure as per “Kitchen Tactics: Boiling Water Bath Canning”
- Segment your grapefruit per “Kitchen Tactics: Segmenting Citrus”
- Holding your grapefruit segments back, pour the collected juice into a 2 cup measuring cup.
- Add enough water to make 2 cups liquid.
- Pour into a medium saucepan and add 1 cup sugar and mint spice bag.
- Bring to a boil, stirring until sugar is dissolved. Lower heat and simmer until you get the minty flavor you desire. Fish out the spice bag.
- Working quickly, fill sterilized jars with grapefruit segments leaving 1/2 inch head space
- Ladle the boiling syrup over the segments leaving a 1/4 inch head space.
- Use a chopstick to remove air bubbles, wipe rim with a damp towel, put the lid and ring on the jar, and place jar in your canning pot. Ensure that you have at least 1 inch of water covering the jars.
- Process for 5 minutes. Shut off heat and let the jar sit in the hot water for 5 minutes.
- Check seals after one hour; if they have sealed, place in fridge immediately. Label sealed jars and store.