Try wallyworld or target.
They sell the plastic syringe,with needle, for about $1.75.
Folks that inject, usually carry several with
them.
Pork loin can be very lean,dry,flavorless and often benefits from brining or injections.
Not sure why you would let butts set out a couple hrs,unless you are putting a bunch of them in a logburner?
Butts have so much moisture,and can be seasoned while you pull them,that most folks don't bother to inject.
Shoulders,at MIM,are presented whole on the cooker,so they don't have the option to season the pulled meat.
Here are a couple more:
Smokey Bones Pork Shoulder Recipe Recipe courtesy John Radcliff
Recipe Summary
Difficulty: Medium
Prep Time: 1 hour
Cook Time: 10 hours
Yield: 6 servings
User Rating:
1 whole pork shoulder
1 gallon chicken broth
3 cups homemade or commercially prepared dry barbecue spice rub, ground to a powder
1 cup sugar
1 cup homemade or commercially prepared barbecue sauce plus additional for glazing
1/4 cup Worcestershire sauce
1 pound butter, melted
1 cup olive oil
About 1 gallon apple juice
2 tablespoons corn syrup for glaze, optional
Special equipment: A charcoal or wood-fired grill or smoker; a meat injector
Light a fire in the smoker or grill. Allow the fire to burn for about 2 hours until the temperature in the cooker is 225 degrees F.
Meanwhile, remove the pork shoulder from the refrigerator and it rest at room temperature for 1 hour.
Bring the chicken broth to a boil in a large pot. Add 2 cups of the rub, then add the sugar, barbecue sauce, and Worcestershire sauce and simmer until dissolved. Using a handheld mixer or whisk, gradually incorporate the melted butter and olive oil. Mix until the broth and fat emulsify then set the marinade aside to cool.
Rub the pork shoulder all over with the remaining cup of dry rub then set the meat aside for 20 minutes. Measure the marinade, and then add enough apple juice to achieve a 3 to 1 marinade-to-juice ratio. Inject the marinade and juice mixture into the pork repeatedly until the meat is saturated and can absorb no more.
Cook the pork shoulder at 225 degrees F in the grill or smoker (adding more coal or wood as necessary to maintain the temperature). After about 4 hours the pork should have turned a rich red-brown. Remove the meat from the cooker, wrap it in aluminum foil, and then return it, fat side down, to the grill or smoker. At this point begin checking the temperature of the meat with a thermometer every hour until it reaches an internal temperature of between 180 and 190 degrees F. at the center. (This should take about 4 more hours; the bones will pull clean while the meat stays firm.)
Glaze the shoulder with barbecue sauce, mixed with a little corn syrup for extra shine if you like. Using a large fork, pull the meat from the bones and serve.
Chris LillyThe Slabs
Smoked Pork Butt "Kyle Style"
featured on Food Network's "Royal BBQ Battle"
Prep Time: 15 minutes Cook time: 6-8 hours
Yield: 6-8 servings
Marinade:
2 cups cider vinegar
1 cup corn oil
1 can pineapple concentrate
1/4 cup salt (non-iodized)
1/8 cup paprika
1/8 cup worcestershire
1/8 cup white pepper
1 chicken boullion (dissolved)
Place all ingredients in a non-reactive bowl and whisk together.
Jack's Old South Meat Marinade Recipe courtesy Jack's Old South BBQ & Grill
Recipe Summary
Difficulty: Easy
Prep Time: 5 minutes
Cook Time: 5 minutes
Yield: 12 1/2 cups
User Rating:
2 quarts apple juice
1 cup Worcestershire sauce
1 cup orange juice
1 cup light brown sugar
1/2 cup olive oil
1/2 cup lemon juice
2 tablespoons hot sauce
1/2 cup apple cider vinegar
1/2 cup salt
Heat and whisk together until sugar and salt dissolve.