Electric Hot Pot

Overview

An electric hot pot is a communal dining device where diners cook fresh ingredients (thinly sliced meat, seafood, vegetables, noodles) in a simmering seasoned broth at the table. The vessel is a stainless steel pot with a Internal Divider bisecting it into two compartments, allowing two different broths (e.g., spicy on one side, mild on the other) to maintain separate flavor profiles. The Heat Transfer Block beneath the pot is heated by a 1500 W Heating Element, bringing both chambers to and maintaining a consistent broth temperature (70–100 °C, selected via the Temperature Dial).

Diners sit around the table with the hot pot in the center. Each diner has a small Utensil Slot in the Utensil Bracket filled with a metal strainer or slotted spoon, a pair of wooden chopsticks, and their own small dipping sauce bowl. They grab raw ingredients (a slice of beef, a shrimp, a vegetable), place them in the strainer, submerge them in the boiling broth for 15–30 seconds (meat) to 2–3 minutes (vegetables), then retrieve and eat. The Backup Thermostat and Control PCB maintain the broth at a rolling simmer (≈95–100 °C) without boiling dry. A Ready Indicator Light indicates when the broth has reached the target temperature.

How it works

Setup. The operator places the hot pot on a sturdy table in the center of the dining area. They plug the Power Cord into a 230 V outlet. The Mains Plug has a 15 A thermal breaker for safety.

Filling. Two separate broths are prepared before the meal: one in a pot on the stove (e.g., spicy Sichuan broth with chilies and Sichuan peppercorns) and one mild (chicken or seafood broth). Once the hot pot is positioned, the operator pours the spicy broth into one chamber up to the Capacity Marking (2 L) and the mild broth into the other chamber. The Internal Divider keeps them separate.

Preheat phase. The operator rotates the Temperature Dial to position "5" (high heat, intended to bring the broth to a boil). They press the Power On/Off Switch. The Heating Element (1500 W) energizes, heating the Heat Transfer Block below the pot. Heat conducts through the pot bottom into both chambers simultaneously.

The Temperature Sensor (immersed in the broth or surface-mounted) continuously measures broth temperature. The Control PCB MCU receives this signal. If temperature is below the target (for dial position 5, target ≈ 95–100 °C), the Heater Relay keeps the heater energized. As temperature climbs toward the target, the MCU reduces the duty cycle (pulse-width modulation), so the heater cycles on and off. Once the broth reaches ≈95 °C (dial position 5), the Ready Indicator Light glows, indicating readiness. Preheating from cold takes 8–10 minutes.

Mechanical backup: if the Control PCB or sensor fails, the Backup Thermostat (bimetal) provides failsafe protection by cutting heater at 105 °C.

Dining phase. With the broth at a gentle rolling boil (or simmer for lower dial positions), diners begin cooking. One diner takes a piece of thinly sliced beef (≈2 mm thick, cut against the grain), places it in a metal strainer (resting in one of the Ladle/Utensil Slots on the Removable Lid rim), and submerges it into the spicy broth. Stainless steel conducts heat rapidly; the meat cooks in 15–30 seconds, turning gray-brown. The diner lifts the strainer out, dips the cooked meat in a small dish of sesame oil or soy sauce, and eats it.

Another diner cooks a mushroom slice in the mild broth side (same technique, but mushrooms need 2–3 minutes of gentle simmering). A third diner adds thin noodles to the broth (3–5 minutes simmering).

Temperature adjustment. If the broth is boiling too vigorously (splashing or reducing), the operator rotates the Temperature Dial down to position "3" (medium). The Control PCB recalculates the target and lowers duty cycle, bringing the broth to a more gentle simmer within 1–2 minutes. If broth is not hot enough, the dial is turned up.

Flavor management. Over the course of the meal (30–60 minutes), the broth volume decreases due to evaporation and absorption into ingredients. The diners can add hot water or additional broth from a side pot to maintain the Capacity Marking level. As the broth is depleted and replenished, flavors concentrate and meld.

Lid management. The two-section Removable Lid (each section hinged independently) allows steam to escape via the Steam Vent Holes, preventing pressure buildup. Diners flip open the section covering their selected chamber to access the broth. The Heat-Resistant Knobs are silicone or glass, insulating against heat. The lid sections can rest partially open, supported by the rim, allowing utensil handles to rest in the Ladle/Utensil Slots without tipping the lid.

End of meal. Once all ingredients are cooked and eaten, the operator turns off the Power On/Off Switch. Leftover broth can be eaten as a final soup course. The Divided Cooking Pot is allowed to cool (≈30 minutes) to ≈40 °C before hand-washing. All components are dishwasher-safe except the Heat Transfer Block, which remains fixed to the Stainless Base Plate.

All protection: the Thermal Fuse (15 A) at the heater input provides overcurrent cutoff. The Strain Relief Boot boot on the cord prevents fraying and insulates the entry point. The Non-Slip Foot and Thermal Insulation Ring keep the base cool and stable on the table.