Whether it is a holiday feast, a Sunday dinner, or a simple meal prep session, knowing how to heat ham in crockpot is a game-changer for any home cook. Ham is often the centerpiece of a meal, but because most hams purchased at the grocery store are pre-cooked, the challenge isn’t “cooking” the meat—it’s reheating it without drying it out. A slow cooker provides the ideal environment for this: a sealed, low-heat chamber that locks in moisture and allows flavors to penetrate deep into the meat.
Using a crockpot frees up your oven for side dishes like roasted vegetables or dinner rolls, making it a strategic choice for busy hosting days. This guide will walk you through the nuances of selecting the right ham, preparing the liquid base, and mastering the timing to ensure every slice is tender, juicy, and flavorful.
Choosing the Right Ham for Your Slow Cooker
Before you even turn on the appliance, you need to ensure your ham is a good fit. Most slow cookers range from 6 to 8 quarts in size. While a massive 12-pound bone-in ham is a classic image, it likely won’t fit under the lid of a standard crockpot.
Bone-In vs. Boneless
Bone-in hams generally offer superior flavor and texture. The bone helps conduct heat through the center of the meat and adds a richness to the juices that you can later use for soups or beans. However, they are bulkier. Boneless hams are much easier to slice and fit into smaller slow cookers, though they can sometimes lack the depth of flavor found in bone-in varieties.
Spiral Sliced vs. Whole
Spiral-sliced hams are incredibly convenient because they are pre-cut all the way to the bone. This allows whatever glaze or liquid you use to seep between the slices. The downside is that they are more prone to drying out if heated for too long. A whole (unsliced) ham acts more like a roast, retaining its internal moisture more effectively but requiring more effort to carve at the end.
Preparation Steps for a Moist Ham
Preparation is the secret to avoiding the dreaded “rubbery” texture that occurs when ham is overheated. Since the goal is to reach an internal temperature of 140°F, you need to provide enough ambient moisture to create a steaming effect.
Trimming and Fitting
If your ham is slightly too large for the lid to close securely, don’t panic. You can trim a small portion of the meat or the bone to make it fit. If the lid still won’t close, you can create a “foil tent” by tightly wrapping heavy-duty aluminum foil over the top of the crockpot to seal in the steam.
Adding the Liquid Base
Never put a ham in a dry crockpot. You need at least half a cup to a cup of liquid at the bottom. Popular choices include:
- Apple juice or cider for a fruit-forward sweetness.
- Pineapple juice for a tropical tang that tenderizes the meat.
- Ginger ale or cola for a classic, caramelized finish.
- Chicken broth or water if you prefer a savory, less sweet profile.
Creating a Flavorful Glaze
While many hams come with a flavor packet, making your own glaze elevates the dish significantly. A good glaze needs a balance of sugar (to caramelize) and acid or spice (to cut through the saltiness of the ham).
Classic Brown Sugar Glaze A mixture of brown sugar, Dijon mustard, and a splash of apple cider vinegar is a timeless choice. Rub the sugar mixture directly onto the ham before starting the slow cooker. As the ham heats, the sugar melts and mingles with the juices to create a thick, delicious syrup.
Honey and Spice Variations For a stickier finish, use honey or maple syrup as your base. Adding warm spices like cloves, cinnamon, or even a pinch of cayenne pepper can add complexity. If you are using cloves, you can stud the surface of the ham with whole cloves, but remember to remove them before serving as they are not pleasant to bite into.
Timing and Temperature Settings
When learning how to heat ham in crockpot, the “Low” setting is almost always your best friend. High heat can seize the muscle fibers and push out the moisture too quickly.
Cooking Times
For a fully cooked ham, you are looking to heat it for approximately 4 to 6 hours on Low. If you are in a rush and must use the High setting, check the meat after 2 to 3 hours. The goal is an internal temperature of 140°F. Using a meat thermometer is the only way to be 100% sure you haven’t overshot the mark.
The Resting Period
Once the ham reaches the desired temperature, turn off the crockpot and let the meat rest for at least 15 to 20 minutes before slicing. This allows the juices to redistribute throughout the meat. If you slice it immediately, the moisture will run out onto the cutting board, leaving the ham dry.
Serving and Storing Leftovers
Ham is incredibly versatile. Once you’ve mastered the reheating process, the leftovers become a goldmine for future meals.
Slicing Techniques
For a spiral ham, simply cut along the natural fat lines and around the bone to release the slices. For a whole ham, cut thin slices against the grain for the most tender bite. Serve the accumulated juices from the bottom of the crockpot in a small bowl on the side so guests can drizzle extra flavor over their portions.
Safe Storage
Leftover ham should be refrigerated within two hours of cooking. It will stay fresh in an airtight container for 3 to 4 days. If you can’t finish it all, ham freezes exceptionally well. Dice it up for omelets, casseroles, or fried rice, and store it in freezer bags for up to two months. Don’t forget to save the ham bone! It can be frozen and dropped into a pot of split pea soup or collard greens later for incredible smoky flavor.
Frequently Asked Questions
Can I put a frozen ham in the slow cooker?
It is highly recommended to thaw your ham completely in the refrigerator before putting it in the crockpot. Heating a frozen ham takes much longer, and the outer layers of the meat may spend too much time in the “danger zone” temperature range (between 40°F and 140°F) where bacteria can grow rapidly. Plan for 24 to 48 hours of thawing time in the fridge depending on the size of the ham.
How do I prevent a spiral ham from getting dry?
The best way to protect a spiral ham is to place it cut-side down in the slow cooker. This minimizes the surface area of the slices exposed to the air. Additionally, wrapping the ham in foil inside the crockpot or basting it with its own juices every hour can help maintain moisture levels.
Should I use the High or Low setting?
The Low setting is superior for reheating ham. Because the meat is already cooked, you are simply trying to bring it up to a serving temperature. Low heat allows the fat and connective tissues to soften gently without making the meat tough. Only use the High setting if you are short on time and can monitor the internal temperature closely.
How much liquid is actually necessary?
You don’t need to submerge the ham. About 1/2 cup to 1 cup of liquid is sufficient. The crockpot lid traps the steam generated by this liquid, creating a moist environment that “bastes” the ham throughout the process. Using too much liquid can wash away your glaze and result in a “boiled” flavor rather than a roasted one.
What do I do if my ham doesn’t have a glaze?
You don’t necessarily need a glaze to have a delicious ham, but it helps with color and flavor. If you prefer a savory ham, you can simply season it with black pepper, garlic powder, and onion powder. Adding a few rings of pineapple or some maraschino cherries to the top can also provide a natural sweetness and visual appeal without the need for a thick sugar paste.