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Blackjack continuous shufflers: no breaks, no counting

A continuous shuffling machine (CSM) puts used cards straight back into the mix after each round. The house edge per hand barely changes, but you play more hands per hour, so you lose more per hour on average.

Reviewed Oct 14, 2026

Answer first

90s

Feature	Hand-shuffled shoe	Continuous shuffler
Hands per hour	About 60–70	About 75–85
Shuffle breaks	Yes	None
Card counting	Possible	Not useful
Edge per hand	Base	Slightly lower

Key numbers

CSMs in four numbers

+20%More hands per hourNo shuffle breaks

TinyEdge change per handSlightly in your favor

0Counting valueCards return every round

More per hourExpected lossBecause of speed

In short

Key takeaways

A CSM makes the game faster, which raises your average loss per hour.
The edge per hand drops very slightly, but not enough to offset the speed.
Card counting needs a deep shoe; a CSM resets the cards every round.
Automatic shufflers that shuffle a whole shoe at once are not the same as CSMs.

On the felt

Cards in a CSM round

Round 1 dealt
Cards go back into the machine
Round 2 dealt
Some round 1 cards may appear again
Round 3 dealt
The same king can show up next round

With a CSM, any card can come back almost at once.

Expected loss per hour at $25 per hand

Game	Hands per hour	Edge	Expected loss
Shoe, 6 decks	65	0.6%	About $10
CSM, 6 decks	80	About 0.6%	About $12
CSM with 6:5 payout	80	2%	About $40

Rough figures for basic strategy.

How a CSM works

The dealer drops used cards into the machine after each round. Inside, cards are spread into slots and released in random order.

There is never a cut card or shuffle break, so play is continuous.

Shufflers compared

Device	What it does	Counting
Hand shuffle	Dealer shuffles the whole shoe	Possible
Automatic batch shuffler	Shuffles one shoe while another is dealt	Possible
Continuous shuffler	Mixes cards back every round	Not useful

Batch shufflers look similar but keep a normal shoe.

Why casinos use them

CSMs speed up the game and remove the shuffle break, which raises hands per hour. They also stop card counting and some forms of cheating.

They are common on lower-limit tables and less common in high-limit pits.

Sequence

Spotting a CSM

Step 01
Watch the discards
Cards go into a machine after each round.
Step 02
Look for a cut card
A CSM has none.
Step 03
Check the shoe
A batch shuffler still deals from a shoe.
Step 04
Ask the dealer
"Is this a continuous shuffler?"

Should you avoid CSMs?

If you only play basic strategy, a CSM costs a little more per hour because of speed. Taking short breaks evens that out.

If you count cards, CSM tables are not worth playing.

Floor rules

Shuffler terms

Know before you sit

CSM: Continuous shuffling machine.
Penetration: How deep into a shoe the dealer goes before shuffling.
Cut card: The card marking the end of a shoe.
Batch shuffler: A machine that shuffles a full shoe at once.

Common mistakes

Thinking a CSM is rigged: CSMs are tested and approved. They change speed, not fairness.
Ignoring speed: More hands per hour means more expected loss per hour.
Counting at a CSM table: The count resets every round, so it has no value.
Confusing shufflers: A batch shuffler still deals a normal shoe.

Keep reading

Go play

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After the 90 seconds

Questions before and after you play

A 90-second guide cannot cover every table moment. Tap a group, then a question — answers are short paragraphs, not one-liners.

01Basics

What is a continuous shuffling machine?

A device that returns used cards to the mix after each round, so the deck is never dealt down.

Do CSMs change the house edge?

Very slightly in the player’s favor per hand, by a tiny amount. Faster play outweighs it per hour.

Can you count cards against a CSM?

No useful way. The cards return almost at once, so the count never builds. House rules can vary, so check the table placard or ask the dealer.

02Play

How many more hands do CSMs deal?

Roughly 15% to 20% more per hour, because there are no shuffle breaks. House rules can vary, so check the table placard or ask the dealer.

Do CSMs make blackjack worse?

For basic strategy players, a little worse per hour. For counters, much worse. House rules can vary, so check the table placard or ask the dealer.

Are CSMs used online?

Online games shuffle by software every hand, which works much like a CSM. House rules can vary, so check the table placard or ask the dealer.

03At the table

How do I tell a CSM from a shuffler?

A CSM takes cards after each round and has no cut card. A batch shuffler shuffles a shoe while another is in play.

Can I ask for a hand-shuffled table?

You can ask the floor; many casinos have both types on the floor. House rules can vary, so check the table placard or ask the dealer.

Are CSMs fair?

Yes. They are tested and approved by regulators like any other gaming device. House rules can vary, so check the table placard or ask the dealer.

Sources

Wizard of Odds — Blackjack Not from a registry (Reference source, not an official registry) · accessed Oct 14, 2026Rules, odds and house edge
Wizard of Odds — Continuous shufflers Not from a registry (Reference source, not an official registry) · accessed Oct 14, 2026Rules, odds and house edge
Nevada Gaming Control Board · accessed Oct 14, 2026Approved games and gaming revenue reports
National Council on Problem Gambling — Help and resources Not from a registry (Reference source, not an official registry) · accessed Oct 14, 2026Free, confidential help: call or text 1-800-GAMBLER